Security Analysis on a Multicast Source Authentication Scheme
Dengguo Feng · Jisuanji gongcheng · 2006
Multicast source authentication is one of the main challenges of securing multicast communication. The non-repudiation multicast source authentication scheme proposed by Li and Huai is claimed to be very efficient and robust to packet loss. However, with selectively intercepting and discarding of some packets, the paper shows that this scheme is vulnerable to forgery attacks. Based on Chernoff bound, the attack can be defeated by careful selection of security parameters of the scheme.